python-3.x

问题 Let's suppose I have this: my_list = [{'id':'1','value':'1'}, {'id':'1','value':'8'}, {'id':'2','value':'2'}, {'id':'2','value':'3'}, {'id':'2','value':'5'}, ] and I want to apply a function (eg shuffle ) for each group of values separately for the key id . So I would like to have this for example: my_list = [{'id':'1','value':'1'}, {'id':'1','value':'8'}, {'id':'2','value':'3'}, {'id':'2','value':'5'}, {'id':'2','value':'2'}, ] Therefore I do not want something to change between the

问题 I'm using Version: 2.1.0 of TensorFlow and 2.3.1 of keras. While importing any module of keras i'm facing below tensorflow back-end error. import pandas as pd, numpy as np, os, re, json, math, time from keras.models import Sequential from keras.layers import Dense from keras.wrappers.scikit_learn import KerasRegressor from sklearn.model_selection import cross_val_score from sklearn.model_selection import KFold from sklearn.preprocessing import StandardScaler from sklearn.pipeline import

问题 I have a text file that is formatted as follows: [one] A = color B = Petals C = Junk [two] Z = 10 A = freq corner = yes [three] D = code status = 45 I'm trying to read this file into a nested dictionary so that it looks like this: {'one':{'A':'color','B':'Petals','C':'Junk'}, {'two':{'Z':'10','A':'freq':'corner':'yes'}, {'three':{'D':'code','status':'45'}} I tried import re ini_sections = [] ini_dict = {} x = 0 with open(path,'r') as f: for line in f: re_found = re.findall('\[(.*?)\]',line)

问题 I'm creating a chat screen, adding a Label to my GridLayout everytime the send button is pressed. However, my Labels run off the side of the screen when the text becomes too long, I would like them to wrap round and the text to go onto a new line but this isn't happening and I'm not sure why. <ChatPage>: name: "chat_page" layout_content: layout_content NavigationLayout: id: nav_layout MDNavigationDrawer: NavigationDrawerIconButton: text: "Test" on_release: app.root.current = "login"

问题 Using matplotlib, python3.6. I am trying to create some quiverkeys for a quiver plot but having a hard time getting the label colors to match certain arrows. Below is a simplified version of the code to show the issue. When I use the same color (0.3, 0.1, 0.2, 1.0 ) for a vector at (1,1) and as 'labelcolor' of a quiverkey I see 2 different colors. q=plt.quiver([1, 2,], [1, 1], [[49],[49]], [0], [[(0.6, 0.8, 0.5, 1.0 )], [(0.3, 0.1, 0.2, 1.0 )]], angles=[[45],[90]]) plt.quiverkey(q, .5, .5, 7,

问题 Most relevant questions I've seen here are not fixing my issue. I'm writing a program that uses matplotlib and tkinter to make a GUI. I'm running CentOS7. I get this when trying to run python36 testGraph.py on my server: Traceback (most recent call last): File "testGraph.py", line 167, in <module> app = SeaofBTCapp() File "testGraph.py", line 57, in __init__ tk.Tk.__init__(self, *args, **kwargs) File "/usr/lib64/python3.6/tkinter/__init__.py", line 2020, in __init__ self.tk = _tkinter.create

问题 While it has been previously answered how to fake isinstance, in this case I'm trying to fake the response given by type() while reviewing the TypeChanger class. For context Im just trying to understand if is doable or not and why for Python 3.X This is my current test setup: def test(): class TypeChanger(): @classmethod def __instancecheck__(cls, instance): if instance is list: return True else: return False @property def __class__(self): return list def extra_functionality(self): return

问题 **Year_qtr GDP ADJ_GDP** 2 1947q1 243.1 1934.5 3 1947q2 246.3 1932.3 4 1948q3 250.1 1930.3 5 1949q4 260.3 1960.7 Tried parse() from dateutil package but didnt wwork. Result dataframe should have 'Year_qtr' column as date values instead of object. 回答1: pandas already can do this out of the box! you can cast to datetime right away: import pandas as pd df = pd.DataFrame({'Year_qtr': ['1947q1', '1947q2', '1948q3', '1949q4']}) df['datetime'] = pd.to_datetime(df['Year_qtr']) # df # Year_qtr

问题 I would like to convert the below hex sequences to images, in the process of sifting through quite a number of problems that are similar to mine none have come close as to that solved in https://stackoverflow.com/a/33989302/13648455, my code is below, where could I be going wrong? data = "2a2b2c2a2b2c2a2b2c2a2b2cb1" buf = io.StringIO() for line in data.splitlines(): line = line.strip().replace(" ", "") if not line: continue bytez = binascii.unhexlify(line) buf.write(bytez) with open("image

问题 I need to generate and STP traffic using scapy and when I visualize it via wireshark I get an output similar to the caption shown below: when I run this code: from scapy.all import STP import scapy from scapy.all import * data='STP' sendp(Ether(dst="01:80:c2:00:00:00")/LLC(dsap=0xaa, ssap=0xaa)/STP(bpdutype=0x00, bpduflags=0x01, portid=0x8002)/data, iface="eth1", count=200) this is my wireshark output I don't know how to change the organization code to 00:00:0c, because I believe it's the one